Alternating-current motor.



o B Z N T. E H 0 l ALTER-NATING CURRENT MOTOR.

APPLIOATIDIT FILED MAYZQ, 1905.

4 SHEETS-SHEET l.

' 110.0%,495. PATENTEDJUNE 12, 1906.

OATIOH mam 'J. 0. HEINZB, JR. ALTERNATING CURRENT MOTOR.

' APPLI IAY29,1905.

HHHHHHHHHH 2.

NO. 823,495. YATENTED JUNE 12, 1906.

v J. 0. RENEE? JR ALTERNATING CURRENT MOTOR APPLIOATIOIJ FILED HAY 29, 1'905. V

4 SHEETS-SHEET 3.

PATENTED- JUNE 12-. 190s.

J. 0. HEINZB, JR. ALTERNATING CURRENT MOTOR.

APPLICATION FILED MAY 29, 1905.

4 sums-$113 4.

I I I lllll principle involved in 'n ention is to cause, dur- .,1 7 us of sziizl current ;1 ull': primary circuit, the secshort-miruited in an "*8 coils of seooru'lzuy and 111', when "l 1y ruuits 0csic positions rel ztion to open 500mm: circuit v 11 series. .&

s Li rent mot Vicle a mat rent sf :1 g

tor when l the. armature accelerates Zlllfir;

and Fig. 3 is shows cuagm n1 "plus se said motor, while any pl a .05 a mmilfied form of (nut in successisn liming each 6 and 7 point out the the current. 3 positions of brushes,

My invention consists in so fish armature, and 001mm] isms that Wl en the soils 0 poles 230 under those of the field, but i in. advance tlisi'eof, ills palss of said mi and said field are, 'l eac icoil l designing};

- mesh and. Wiring when the arma "mi 5. J61), have adforty-five (lgs. 1, oi the drawcircular frame 0L, supactivemagnelic iielrl,,0f 1.. l in lml-'inds, slectro field-w zqnets 1 2 3 4, poles of said nrnmiui'e and said lid l A (l poles, and an armature 8, each lather; but when til/51d an! a ser of elect! ignetic have moved into and beyond i i" and intervening smut-(AP netic posisiwns midway lwi, 1.2 s 2 F) I), said armatum l5 :0- ilelcbpoles (lien all said. pdles been i y said fielilmiagnets 1 2 3 posits ldntl 01 kinds and slim J11 2; sa-cui'el T moultecl, as upon the until those of the armature be be It comprises two those of the field, :it which monieui s' ingmed metal plates a mazture-Poles liecume l 6 ("f A a a. nt lam-2s are lamifily claim l tol nuts (13* therebrackets 0, nlt-s nml 00n- .0 -u im 1 we and 1 es 0.1 the in 1 sails vi is air vi L 2 3 l have i Us. npl 'inding of therein by flu soils 02' Elm pnnmry', repulcircuit X, the

sion takes place bem'ssn the pales 0f tll m succee new being mature and the field, and liars rtii'msppiis to til Oi the former. moves on iOWlli mm fislu isles. when l A ironingthe poles. of the wtum um iui,l\\'*n,y b 'se wound in *ries twesn those {if 3?) l U ,fiGODflfiif v, of insulated Wire in the suit is plnl ed amt, anattrsm ture and. halal ales,

1&1343 (limit '1', the. winding of well illflg p le-piece being opposite to that. ins preceedmg pole-piece. The commuieminmry cirlistwesn swim drawn forward until a. 1' i ics of eight se ments secondzuy is as 1 f" part,

fj buing in WIlLlQ the re or M 4 out of the primnly 1 4 Ls]! curreni c021 Q see,

meining four segments f 3 f f 3 f 3 are in circuit or more phases of the current before said erwith each other. Two pairs of brushes 'y y is mature moves through forty-five degrees, the

11: are in sliding engagement with these segpoles of the field end armature are always of Inentsone pair y y electrically connected the some kind, both being S or N. Hence 5 to close and open the secondary Y and the they always repel each other. Now While the 70 other air in m to close sndopen the primary 'crmeture-poles are moving out of the mag- X en the secondary Y to place them in and netic fields and. are oeing repelled less and. out of series and to short-circuit the primary l less the closed circuiting mete-l masses 1) b b X-one brush c connecting the free end of b are moving into said. iield, and thus More 1 the Winding of the primary shout the polo and more facilitate the flow of the magnetic 7 pieces of the field end the other brush m coni currents between the adjacent poles of nectingwith that portionof the primary conthe field. When the armature has passed ductor m leading to the source of electricity. through on ere oi forty-five degrees, the

1 These brushes are so adjusted with reference brushes y 1 short-circuiting the secondary Y,

to the segments of" the commutator that the slide on to the shortecircuiting segments f 80 disengagement and engagement between f of the commute-tor and the brushes :rw eneech pair of brushes and. its respective seggage the segments f f and allo the main ments take place when the pole-pieces of the current to flow through the secondary armature be in to lead those of the field and Y, as above described, the poles of the elec- 0 also when t e axes of the errneture poles tro fieldmagnets 1 2 3 e and the poles of the 85 .45 when tor the purpose of starting the motor have moved through an arc of forty-five deelectro armature-magnets B? B B B, respecgrees. tively, of the armature ell-being unlike in The construction-and operation of the s kind, and therefore attracting each other psratus shown in Figs. 1, 2, and?) will e more and more until the magnetic axes of more easily understood if reference is made the poles of the fuel and ermntn-re coincide, to the diagrammatic views shown in Figs. 4: when the secondary is short-circuited and 5 end if the course of an alternating curand the armature-poles ere repelled in the rent through the motor and its 'efiect upon manner already pointed out. The movethe' eppareltu'sso for described are noted. ment of the armature increases in speed end Assuming one pleased the main current is continues to increase up to the point Where 5 flowing in the primary circuit X in thc di recthe changes in the poles of the crinsture end tion indicated by the arrows, it causes the those of the hold ere in synchronism with the poles oif the electro field-magnets 1'2 3 e to phases of the alternating current. it perecome S'N SN, respectively shown, mndby chance the srrnsture should. d to get continuin on through the crush it, the segahead of a phase of the current-that is, merits f 2 2 of the commutator F, through the should move more than ninety degrees durcoils B 33 {B B of the secondary circuit Y, ing one phase of the current then the inthe commutstor-segmentsf f, the brush x duced current in the secondary becomes minendthe-leedingout Wire :0 the poles of the irnized end reduces the torque, and the 40 armature have polarities N S N S'opposite in armature repulsion between like poles tells.

kind to those oi the poles of the field. its back on its phase. the megneticexes of all the poles'cf the hold The operation of the motor has new heen and immature are coincident, there no tendex leined. ency on thepart of the armature to move; but in Figs. 5 end 7 I have shown modified form of armature. In pleceoi the interventhe poles of the armature are moved, as icy ing short-circuited. masses-b b t l have hand, to the left, and therefore lead thcse'of substituted four additional pole-pieces B B the field, the brushes as x slide'outof engsge- B WOUlld by single insuls ted Wire to ment with the segments f f -.(shown in forms second secondary circuit Y, wound 5o 4) and into engagement with said segments like the secondary circuit Y, a boye menf f (Shown in Fig. 6.) At this moment tioned, and connected through the segments of engagement the main primary current in 7 f of. the commute-tor F to short-circuit X instead of passing thrcu h the coils of the its-ll? and through eeg'mentsj "f f f to the secondary Y passes throug the electricellyprimary circuit X, and place said primary 55 connected segment-s7 3 f 3 and oil through the circuit X in series With said second secondleading-out Wire :8 of the primary circuitX'to cry circuit Y. By this construction the the source of the electrical energy; but at main primary current instead of flowing seidmoment the brushes y y engage the seg through-only the segments f f 3 of the armsments f f 2 and the coils'of the secondary Y ture when the first secondary is short-cir- 6c are sh'ort-circuited and have induced therein cuited, as in Fig. 6, flows through seid second 1 2 5 by the coils of the rimary circuit inversesecondary coils, they being in series with currents that cause t 1e poles-0f the nrmetune thosepf the field. In fine, the primary cirto become theseme inkindas those ofthe field, cnit X is nlw in series with either thefirst and said poles are therefore repelled. The secondary Y or the second secondary Y, and

65 armaturehegins to move. 11" ere are two that-second? r-rhich is not in series is shortr30 ceases circuited. This is an economical form of construction in that all the electrical energy of the'primary current is utilized.

Fig. 7 shows'the direction of the currents and poles when the modification shown in Fig. 5 is movedthrough an. angle of fortyfive degrees.

While I have shown the pr'mary circuit as energizing the field and the secondary as mounted on the armature, it will be too plain tore uire further des'c iptiei'i and illustration t at there may be a reversal-that is,

the primary circuit may be used to energize the armature and the secondary confined to the field by simply changing the relations of circuits, brushes, and commutators a problem readily understood and solved. by skilled electricians.

The above-described synchronous alterlisting-current motor being described, but not 0 aimed, by me in my application for United States Letters Patent No. 166,621 and filed July 22, 1903, and desiring to protect said motor in the broadest manner legall possible,

hat I claim is 1. A synchronous alternating motor, made up of a stationary member; a movable membar; a field-circuit; an armature circuit; means whereby said field-circuit may be connected in series with said armature-circuit, said motor, while said circuits are connected vin series, operating as ,a series motor; and

means whereby said armature-circuit may be closed upon itself to form asecondary circuit, said secondary circuit being acted upon inductively by said field or primary circuit; said closing of the armature-circuit to form the secondary circuit, taking lace when the magnetic axes of the coils of t e primary and secondary circuits are one and the same, and said connection of the armature-circuit and the field-circuit in series, taking place when the coils of the held and the coils of the armature are in neutral magnetic relations.

' 2. A synchronous alternating-current motor, made up of a stationary member; a m ov able member; a field-circuit; armature--circuits; means whereby said field-circuit may be connected in series with one of said armature-circuits; said motor, while said circuits are connected in series, operating as a series motor; and means whereby the other of said armature-circuits is closed upon itself and forms a secondary circuit, said secondary'circuit being acted u on inductively by said primary circuit; said connection in series tak ing place when the coils of one of said armature-circuits are in neutral magnetic relations with said field-coils, and at said time, said othemarmature-circuit is closed upon itself and is in active relation with said fieldcircuit, so that said armature-circuits will with said field-circuit simultaneously form a primary circuit, and a secondary circuit; said motor operating simultaneously both as a'n induction-motor and as a series motor.

3. A synchronous alternating-current motor, made up of a field of eleotromagnets in a primary circuit; a rotatable armature, provided with electromagnets in a secondary circuit; ,a series of commutator-segments, mounted upon the armature-shaft; a pair of electrically-connected brushes, to engage the segments in the secondary circuit, to open and close said secondary circuit; and a pair of brushes in the primary circuit, to eng said segments in the secondary circuit, to nect said primary circuit and said secoluiary circuit in series; and a series of segments in circuit with which said brushes may engage to complete the primary circuit; said shortcircuiting taking lace when the magnetic axes of the coils of the primary circuit, and the coils of the secondary circuit, are one and the same; and said connection in series occurring when the coils of the primary circuit, and the coils of the secondary circuit, are in neutral magnetic ositions.

In testimony w erect I affix my signature in presence of two witnesses.

I JOHN OTTO HEINZE, JR. Witnesses i', J. U. Danna, F. Usrao 

